2 # GPIO infrastructure and drivers
5 config ARCH_HAVE_CUSTOM_GPIO_H
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
13 config ARCH_WANT_OPTIONAL_GPIOLIB
16 Select this config option from the architecture Kconfig, if
17 it is possible to use gpiolib on the architecture, but let the
18 user decide whether to actually build it or not.
19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
20 not depend on GPIOs being available, but rather let the user
21 decide whether he needs it or not.
23 config ARCH_REQUIRE_GPIOLIB
27 Platforms select gpiolib if they use this infrastructure
28 for all their GPIOs, usually starting with ones integrated
30 Selecting this from the architecture code will cause the gpiolib
31 code to always get built in.
36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
38 This enables GPIO support through the generic GPIO library.
39 You only need to enable this, if you also want to enable
40 one or more of the GPIO drivers below.
58 config GPIOLIB_IRQCHIP
63 bool "Debug GPIO calls"
64 depends on DEBUG_KERNEL
66 Say Y here to add some extra checks and diagnostics to GPIO calls.
67 These checks help ensure that GPIOs have been properly initialized
68 before they are used, and that sleeping calls are not made from
69 non-sleeping contexts. They can make bitbanged serial protocols
70 slower. The diagnostics help catch the type of setup errors
71 that are most common when setting up new platforms or boards.
74 bool "/sys/class/gpio/... (sysfs interface)"
77 Say Y here to add a sysfs interface for GPIOs.
79 This is mostly useful to work around omissions in a system's
80 kernel support. Those are common in custom and semicustom
81 hardware assembled using standard kernels with a minimum of
82 custom patches. In those cases, userspace code may import
83 a given GPIO from the kernel, if no kernel driver requested it.
85 Kernel drivers may also request that a particular GPIO be
86 exported to userspace; this can be useful when debugging.
91 # put drivers in the right section, in alphabetical order
94 tristate "Dialog DA9052 GPIO"
95 depends on PMIC_DA9052
97 Say yes here to enable the GPIO driver for the DA9052 chip.
100 tristate "Dialog Semiconductor DA9055 GPIO"
101 depends on MFD_DA9055
103 Say yes here to enable the GPIO driver for the DA9055 chip.
105 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
106 be controller by this driver.
108 If driver is built as a module it will be called gpio-da9055.
113 comment "Memory mapped GPIO drivers:"
116 tristate "CLPS711X GPIO support"
117 depends on ARCH_CLPS711X || COMPILE_TEST
120 Say yes here to support GPIO on CLPS711X SoCs.
123 bool "TI Davinci/Keystone GPIO support"
124 default y if ARCH_DAVINCI
125 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
127 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
129 config GPIO_GENERIC_PLATFORM
130 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
133 Say yes here to support basic platform_device memory-mapped GPIO controllers.
136 tristate "Synopsys DesignWare APB GPIO driver"
138 select GENERIC_IRQ_CHIP
140 Say Y or M here to build support for the Synopsys DesignWare APB
144 tristate "IT8761E GPIO support"
145 depends on X86 # unconditional access to IO space.
147 Say yes here to support GPIO functionality of IT8761E super I/O chip.
150 tristate "Emma Mobile GPIO"
151 depends on ARM && OF_GPIO
153 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
157 depends on ARCH_EP93XX
161 bool "LSI ZEVIO SoC memory mapped GPIOs"
162 depends on ARM && OF_GPIO
164 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
166 config GPIO_MM_LANTIQ
167 bool "Lantiq Memory mapped GPIOs"
168 depends on LANTIQ && SOC_XWAY
170 This enables support for memory mapped GPIOs on the External Bus Unit
171 (EBU) found on Lantiq SoCs. The gpios are output only as they are
172 created by attaching a 16bit latch to the bus.
175 tristate "F71882FG and F71889F GPIO support"
178 This option enables support for GPIOs found on Fintek Super-I/O
179 chips F71882FG and F71889F.
181 To compile this driver as a module, choose M here: the module will
182 be called f7188x-gpio.
185 bool "MOXART GPIO support"
186 depends on ARCH_MOXART
188 Select this option to enable GPIO driver for
189 MOXA ART SoC devices.
193 depends on PPC_MPC52xx
196 bool "MPC512x/MPC8xxx GPIO support"
197 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
198 FSL_SOC_BOOKE || PPC_86xx
200 Say Y here if you're going to use hardware that connects to the
201 MPC512x/831x/834x/837x/8572/8610 GPIOs.
204 tristate "Qualcomm MSM GPIO v1"
205 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
207 Say yes here to support the GPIO interface on ARM v6 based
208 Qualcomm MSM chips. Most of the pins on the MSM can be
209 selected for GPIO, and are controlled by this driver.
212 tristate "Qualcomm MSM GPIO v2"
213 depends on GPIOLIB && OF && ARCH_QCOM
215 Say yes here to support the GPIO interface on ARM v7 based
216 Qualcomm MSM chips. Most of the pins on the MSM can be
217 selected for GPIO, and are controlled by this driver.
221 depends on PLAT_ORION
224 select GENERIC_IRQ_CHIP
230 select GENERIC_IRQ_CHIP
236 select GENERIC_IRQ_CHIP
239 tristate "Cavium OCTEON GPIO"
240 depends on GPIOLIB && CAVIUM_OCTEON_SOC
243 Say yes here to support the on-chip GPIO lines on the OCTEON
247 bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
248 default y if ARCH_OMAP
250 select GENERIC_IRQ_CHIP
251 select GPIOLIB_IRQCHIP
253 Say yes here to enable GPIO support for TI OMAP SoCs.
256 bool "PrimeCell PL061 GPIO support"
259 select GPIOLIB_IRQCHIP
261 Say yes here to support the PrimeCell PL061 GPIO device
264 bool "PXA GPIO support"
265 depends on ARCH_PXA || ARCH_MMP
267 Say yes here to support the PXA GPIO device
270 tristate "Renesas R-Car GPIO"
271 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
273 Say yes here to support GPIO on Renesas R-Car SoCs.
277 depends on PLAT_SAMSUNG
279 Legacy GPIO support. Use only for platforms without support for
283 tristate "SMSC SCH311x SuperI/O GPIO"
285 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
286 SCH3116 "Super I/O" chipsets.
288 To compile this driver as a module, choose M here: the module will
289 be called gpio-sch311x.
291 config GPIO_SPEAR_SPICS
292 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
293 depends on PLAT_SPEAR
294 select GENERIC_IRQ_CHIP
296 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
299 bool "STA2x11/ConneXt GPIO support"
300 depends on MFD_STA2X11
301 select GENERIC_IRQ_CHIP
303 Say yes here to support the STA2x11/ConneXt GPIO device.
304 The GPIO module has 128 GPIO pins with alternate functions.
307 tristate "GPIO based on SYSCON"
308 depends on MFD_SYSCON && OF
310 Say yes here to support GPIO functionality though SYSCON driver.
313 tristate "TS-5500 DIO blocks and compatibles"
314 depends on TS5500 || COMPILE_TEST
316 This driver supports Digital I/O exposed by pin blocks found on some
317 Technologic Systems platforms. It includes, but is not limited to, 3
318 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
322 bool "Toumaz Xenif TZ1090 GPIO support"
323 depends on SOC_TZ1090
324 select GENERIC_IRQ_CHIP
327 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
329 config GPIO_TZ1090_PDC
330 bool "Toumaz Xenif TZ1090 PDC GPIO support"
331 depends on SOC_TZ1090
334 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
337 bool "APM X-Gene GPIO controller support"
338 depends on ARM64 && OF_GPIO
340 This driver is to support the GPIO block within the APM X-Gene SoC
341 platform's generic flash controller. The GPIO pins are muxed with
342 the generic flash controller's address and data pins. Say yes
343 here to enable the GFC GPIO functionality.
346 bool "Xilinx GPIO support"
347 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
349 Say yes here to support the Xilinx FPGA GPIO device
352 tristate "Xilinx Zynq GPIO support"
354 select GPIOLIB_IRQCHIP
356 Say yes here to support Xilinx Zynq GPIO controller.
359 bool "Xtensa GPIO32 support"
361 depends on HAVE_XTENSA_GPIO32
364 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
365 and EXPSTATE (output) ports
368 tristate "NEC VR4100 series General-purpose I/O Uint support"
369 depends on CPU_VR41XX
371 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
374 tristate "Intel SCH/TunnelCreek/Centerton GPIO"
375 depends on PCI && X86
379 Say yes here to support GPIO interface on Intel Poulsbo SCH,
380 Intel Tunnel Creek processor or Intel Centerton processor.
381 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
382 powered by the core power rail and are turned off during sleep
383 modes (S3 and higher). The remaining four GPIOs are powered by
384 the Intel SCH suspend power supply. These GPIOs remain
385 active during S3. The suspend powered GPIOs can be used to wake the
386 system from the Suspend-to-RAM state.
387 The Intel Tunnel Creek processor has 5 GPIOs powered by the
388 core power rail and 9 from suspend power supply.
389 The Intel Centerton processor has a total of 30 GPIO pins.
390 Twenty-one are powered by the core power rail and 9 from the
391 suspend power supply.
394 tristate "Intel ICH GPIO"
395 depends on PCI && X86
399 Say yes here to support the GPIO functionality of a number of Intel
400 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
401 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
402 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
407 tristate "Intel IOP GPIO"
408 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
410 Say yes here to support the GPIO functionality of a number of Intel
416 tristate "VIA VX855/VX875 GPIO"
421 Support access to the VX855/VX875 GPIO lines through the gpio library.
423 This driver provides common support for accessing the device,
424 additional drivers must be enabled in order to use the
425 functionality of the device.
428 bool "GE FPGA based GPIO"
431 Support for common GPIO functionality provided on some GE Single Board
434 This driver provides basic support (configure as input or output, read
435 and write pin state) for GPIO implemented in a number of GE single
438 config GPIO_LYNXPOINT
439 tristate "Intel Lynxpoint GPIO support"
440 depends on ACPI && X86
441 select GPIOLIB_IRQCHIP
443 driver for GPIO functionality on Intel Lynxpoint PCH chipset
444 Requires ACPI device enumeration code to set up a platform device.
447 tristate "Aeroflex Gaisler GRGPIO support"
452 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
453 VHDL IP core library.
457 select GENERIC_IRQ_CHIP
460 comment "I2C GPIO expanders:"
463 tristate "Wolfson Microelectronics Arizona class devices"
464 depends on MFD_ARIZONA
466 Support for GPIOs on Wolfson Arizona class devices.
468 config GPIO_CRYSTAL_COVE
469 tristate "GPIO support for Crystal Cove PMIC"
470 depends on INTEL_SOC_PMIC
471 select GPIOLIB_IRQCHIP
473 Support for GPIO pins on Crystal Cove PMIC.
475 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
478 This driver can also be built as a module. If so, the module will be
479 called gpio-crystalcove.
482 tristate "TI/National Semiconductor LP3943 GPIO expander"
483 depends on MFD_LP3943
485 GPIO driver for LP3943 MFD.
486 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
487 Open drain outputs are required for this usage.
490 tristate "Maxim MAX7300 GPIO expander"
494 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
497 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
500 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
501 Port Expanders. Each IO port on these chips has a fixed role of
502 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
503 Input and Output (designed by 'P'). The combinations are listed
506 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
507 max7322 (4I4O), max7323 (4P4O)
509 16 bits: max7324 (8I8O), max7325 (8P8O),
510 max7326 (4I12O), max7327 (4P12O)
512 Board setup code must specify the model to use, and the start
513 number for these GPIOs.
515 config GPIO_MAX732X_IRQ
516 bool "Interrupt controller support for MAX732x"
517 depends on GPIO_MAX732X=y
519 Say yes here to enable the max732x to be used as an interrupt
520 controller. It requires the driver to be built in the kernel.
522 config GPIO_MC9S08DZ60
523 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
524 depends on I2C=y && MACH_MX35_3DS
526 Select this to enable the MC9S08DZ60 GPIO driver
529 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
532 Say yes here to provide access to several register-oriented
533 SMBus I/O expanders, made mostly by NXP or TI. Compatible
536 4 bits: pca9536, pca9537
538 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
539 pca9556, pca9557, pca9574, tca6408, xra1202
541 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
546 40 bits: pca9505, pca9698
548 config GPIO_PCA953X_IRQ
549 bool "Interrupt controller support for PCA953x"
550 depends on GPIO_PCA953X=y
551 select GPIOLIB_IRQCHIP
553 Say yes here to enable the pca953x to be used as an interrupt
554 controller. It requires the driver to be built in the kernel.
557 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
561 Say yes here to provide access to most "quasi-bidirectional" I2C
562 GPIO expanders used for additional digital outputs or inputs.
563 Most of these parts are from NXP, though TI is a second source for
564 some of them. Compatible models include:
566 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
567 pca9670, pca9672, pca9674, pca9674a,
570 16 bits: pcf8575, pcf8575c, pca8575,
571 pca9671, pca9673, pca9675
573 Your board setup code will need to declare the expanders in
574 use, and assign numbers to the GPIOs they expose. Those GPIOs
575 can then be used from drivers and other kernel code, just like
576 other GPIOs, but only accessible from task contexts.
578 This driver provides an in-kernel interface to those GPIOs using
579 platform-neutral GPIO calls.
582 bool "RICOH RC5T583 GPIO"
583 depends on MFD_RC5T583
585 Select this option to enable GPIO driver for the Ricoh RC5T583
587 This driver provides the support for driving/reading the gpio pins
588 of RC5T583 device through standard gpio library.
591 bool "Semtech SX150x I2C GPIO expander"
595 Say yes here to provide support for Semtech SX150-series I2C
596 GPIO expanders. Compatible models include:
604 select GPIOLIB_IRQCHIP
606 This enables support for the GPIOs found on the STMPE I/O
610 bool "XWAY STP GPIOs"
613 This enables support for the Serial To Parallel (STP) unit found on
614 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
615 that can be up to 24 bit. This peripheral is aimed at driving leds.
616 Some of the gpios/leds can be auto updated by the soc with dsl and
621 depends on MFD_TC3589X
622 select GPIOLIB_IRQCHIP
624 This enables support for the GPIOs found on the TC3589X
628 tristate "TI TPS65912 GPIO"
629 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
631 This driver supports TPS65912 gpio chip
634 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
635 depends on TWL4030_CORE
637 Say yes here to access the GPIO signals of various multi-function
638 power management chips from Texas Instruments.
641 tristate "TWL6040 GPO"
642 depends on TWL6040_CORE
644 Say yes here to access the GPO signals of twl6040
645 audio chip from Texas Instruments.
648 tristate "WM831x GPIOs"
649 depends on MFD_WM831X
651 Say yes here to access the GPIO signals of WM831x power management
652 chips from Wolfson Microelectronics.
655 tristate "WM8350 GPIOs"
656 depends on MFD_WM8350
658 Say yes here to access the GPIO signals of WM8350 power management
659 chips from Wolfson Microelectronics.
662 tristate "WM8994 GPIOs"
663 depends on MFD_WM8994
665 Say yes here to access the GPIO signals of WM8994 audio hub
666 CODECs from Wolfson Microelectronics.
669 tristate "GPIO Support for ADP5520 PMIC"
670 depends on PMIC_ADP5520
672 This option enables support for on-chip GPIO found
673 on Analog Devices ADP5520 PMICs.
676 tristate "ADP5588 I2C GPIO expander"
679 This option enables support for 18 GPIOs found
680 on Analog Devices ADP5588 GPIO Expanders.
682 config GPIO_ADP5588_IRQ
683 bool "Interrupt controller support for ADP5588"
684 depends on GPIO_ADP5588=y
686 Say yes here to enable the adp5588 to be used as an interrupt
687 controller. It requires the driver to be built in the kernel.
690 tristate "Avionic Design N-bit GPIO expander"
691 depends on I2C && OF_GPIO
692 select GPIOLIB_IRQCHIP
694 This option enables support for N GPIOs found on Avionic Design
695 I2C GPIO expanders. The register space will be extended by powers
696 of two, so the controller will need to accommodate for that. For
697 example: if a controller provides 48 pins, 6 registers will be
698 enough to represent all pins, but the driver will assume a
699 register layout for 64 pins (8 registers).
701 comment "PCI GPIO expanders:"
704 tristate "AMD CS5535/CS5536 GPIO support"
705 depends on MFD_CS5535
707 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
708 can be used for quite a number of things. The CS5535/6 is found on
709 AMD Geode and Lemote Yeeloong devices.
714 tristate "BT8XX GPIO abuser"
715 depends on PCI && VIDEO_BT848=n
717 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
718 as a cheap PCI GPIO card.
720 This chip can be found on Miro, Hauppauge and STB TV-cards.
722 The card needs to be physically altered for using it as a
723 GPIO card. For more information on how to build a GPIO card
724 from a BT8xx TV card, see the documentation file at
725 Documentation/bt8xxgpio.txt
730 tristate "AMD 8111 GPIO driver"
733 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
735 Note, that usually system firmware/ACPI handles GPIO pins on their
736 own and users might easily break their systems with uncarefull usage
741 config GPIO_INTEL_MID
742 bool "Intel Mid GPIO support"
743 depends on PCI && X86
744 select GPIOLIB_IRQCHIP
746 Say Y here to support Intel Mid GPIO.
749 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
750 depends on PCI && (X86_32 || COMPILE_TEST)
751 select GENERIC_IRQ_CHIP
753 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
754 which is an IOH(Input/Output Hub) for x86 embedded processor.
755 This driver can access PCH GPIO device.
757 This driver also can be used for LAPIS Semiconductor IOH(Input/
758 Output Hub), ML7223 and ML7831.
759 ML7223 IOH is for MP(Media Phone) use.
760 ML7831 IOH is for general purpose use.
761 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
762 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
765 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
767 select GENERIC_IRQ_CHIP
769 ML7213 is companion chip for Intel Atom E6xx series.
770 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
771 Hub) which is for IVI(In-Vehicle Infotainment) use.
772 This driver can access the IOH's GPIO device.
774 config GPIO_SODAVILLE
775 bool "Intel Sodaville GPIO support"
776 depends on X86 && PCI && OF
778 select GENERIC_IRQ_CHIP
780 Say Y here to support Intel Sodaville GPIO.
782 config GPIO_TIMBERDALE
783 bool "Support for timberdale GPIO IP"
784 depends on MFD_TIMBERDALE
786 Add support for the GPIO IP in the timberdale FPGA.
789 tristate "RDC R-321x GPIO support"
794 Support for the RDC R321x SoC GPIOs over southbridge
795 PCI configuration space.
797 comment "SPI GPIO expanders:"
800 tristate "Maxim MAX7301 GPIO expander"
801 depends on SPI_MASTER
804 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
807 tristate "Microchip MCP23xxx I/O expander"
808 depends on (SPI_MASTER && !I2C) || I2C
810 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
812 This provides a GPIO interface supporting inputs and outputs.
813 The I2C versions of the chips can be used as interrupt-controller.
816 tristate "Freescale MC33880 high-side/low-side switch"
817 depends on SPI_MASTER
819 SPI driver for Freescale MC33880 high-side/low-side switch.
820 This provides GPIO interface supporting inputs and outputs.
823 tristate "74x164 serial-in/parallel-out 8-bits shift register"
824 depends on SPI_MASTER && OF
826 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
827 shift registers. This driver can be used to provide access
828 to more gpio outputs.
830 comment "AC97 GPIO expanders:"
833 tristate "Philips UCB1400 GPIO"
834 depends on UCB1400_CORE
836 This enables support for the Philips UCB1400 GPIO pins.
837 The UCB1400 is an AC97 audio codec.
839 comment "LPC GPIO expanders:"
842 tristate "Kontron ETX / COMexpress GPIO"
843 depends on MFD_KEMPLD
845 This enables support for the PLD GPIO interface on some Kontron ETX
846 and COMexpress (ETXexpress) modules.
848 This driver can also be built as a module. If so, the module will be
851 comment "MODULbus GPIO expanders:"
854 tristate "Janz VMOD-TTL Digital IO Module"
855 depends on MFD_JANZ_CMODIO
857 This enables support for the Janz VMOD-TTL Digital IO module.
858 This driver provides support for driving the pins in output
859 mode only. Input mode is not supported.
862 bool "TI PALMAS series PMICs GPIO"
863 depends on MFD_PALMAS
865 Select this option to enable GPIO driver for the TI PALMAS
870 depends on MFD_TPS6586X
872 Select this option to enable GPIO driver for the TPS6586X
877 depends on MFD_TPS65910
879 Select this option to enable GPIO driver for the TPS65910
883 bool "Intel MSIC mixed signal gpio support"
884 depends on MFD_INTEL_MSIC
886 Enable support for GPIO on intel MSIC controllers found in
890 bool "Broadcom Kona GPIO"
891 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
893 Turn on GPIO support for Broadcom "Kona" chips.
895 comment "USB GPIO expanders:"
897 config GPIO_VIPERBOARD
898 tristate "Viperboard GPIO a & b support"
899 depends on MFD_VIPERBOARD && USB
901 Say yes here to access the GPIO signals of Nano River
902 Technologies Viperboard. There are two GPIO chips on the
903 board: gpioa and gpiob.
904 See viperboard API specification and Nano
905 River Tech's viperboard.h for detailed meaning
906 of the module parameters.
909 tristate "Diolan DLN2 GPIO support"
911 select GPIOLIB_IRQCHIP
914 Select this option to enable GPIO driver for the Diolan DLN2
917 This driver can also be built as a module. If so, the module
918 will be called gpio-dln2.